I have the bag now for several weeks with a Nikon D80 DSLR in use. It is very convenient to carry. One has the possibility they "like ordinary bags" with the strap over your shoulder, or the strap contract on hip, and then to carry on the hip as a "holster". That's my opinion, the great strength of the bag. One does not have to constantly watch, that they one slips from his shoulder and has the camera always at hand. You feel then while wearing only a light pressure on the hips and no longer one notices some point. In addition, you can fix the bag with another belt on its lower thigh, which also contributes to comfort (Note: there are only from the size 400; the smaller Jimmy Bo have this additional belt not). The bag can accommodate a medium-sized SLR with mid-size zoom lens or a camcorder for. In addition, the compartment is divided, so that man can accommodate additional memory cards or batteries. It is also padded sufficiently.
Small disadvantages: Because of the size of the bag you have to watch something when you are wearing them at the hip when passing narrow or in Meschenmengen. The two belts can be removed neither from the pocket, yet can they somehow fits in your pocket. That bothers sometimes a bit.
Otherwise, Jimmy Bo 400 is highly recommended. I opted for the combination of colors brown = outside / yellow = lining. Red is too intrusive, too sensitive white and black too monotonous.